Map of Ukraine showing the escalation of anti-government riots by region. ITAR-TASS Infographics

“Anonymous threats to blow up hydroelectric power plants as well as nuclear power plants have frequented along with manifestations of extremism,” the service said in a statement. “Possible damage of such facilities may result in unforeseen and grave consequences for Ukrainian people.”

A new wave of anti-government protests erupted more than a week ago in the country’s capital, Kiev, and spread across Ukraine after parliament passed a set of laws on violations of public order. Protesters stormed and seized a number of government buildings, including the City Hall and the Justice Ministry in Kiev.

The security service statement said that the country’s Criminal Code stipulates a prison term of up to 15 years on charges of terrorism for intentional seizure or destruction of facilities of great economic and defense significance for the country.

The service also stated that it attributes “the social tension in the country to acts of radically inspired people and organizations.”

According to various reports, at least three protesters are believed to have been killed in violent clashes with police since January 19. Video from the scene of clashes in Kiev showed people wearing masks and helmets to hurl flaming Molotov cocktails and chunks of concrete at police. The Interior Ministry claims that up to 200 policemen have been injured since the protests began.